swaw
Copies words (which should be even) from a source buffer to a destination buffer, swapping every two pairs of characters
#include <string.h> void swaw ( const void *src, void *dst, size_t n);
None
The swaw function copies n words (which should be even) from src to dst swapping every two pairs of characters. This is useful for preparing binary data to be transferred to another machine that has a different byte ordering. This function is only supported in CLIB V 4.11 or above.
#include <string.h> #include <stdio.h> char *msg = "hTsim seasegi swspaep.d"; #define NBYTES 12 main() { auto char buffer[80]; printf( "%s\n", msg ); memset( buffer, `\0’, 80 ); swaw( msg, buffer, NBYTES ); printf( "%s\n", buffer ); }
produces the following:
isThes mgesas iapswd.pe This message is swapped.